Definition of F noun from the Oxford Advanced Learner's Dictionary

     

    F

     noun
    noun
    BrE BrE//ef//
     
    ; NAmE NAmE//ef//
     
    (also f)[countable, uncountable](pl. Fs, F’s, f’s
    BrE BrE//efs//
     
    ; NAmE NAmE//efs//
     
    )
     
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  1. 1 the 6th letter of the English alphabet ‘Fox’ begins with (an) F/‘F’.
  2. 2 F (music) the fourth note in the scale of C major
  3. 3the 6th highest mark/grade that a student can get for a piece of work, showing that it is very bad and the student has failed He got (an) F/‘F’ in/for Chemistry.
  4. see also F-word
See the Oxford Advanced American Dictionary entry: F